Yes. According to the Trademark Law and the Trademark Registration Regulations, the scope of application of a trademark should be the same or similar to the goods or services specified when the trademark is registered. The classification of trademarks is based on the similarity of goods and services, with the purpose of facilitating the management and use of trademarks. Among them, Class 9 trademarks refer to scientific instruments, measuring instruments, signaling instruments, inspection instruments and other related products and equipment. Therefore, the scope of application of Class 9 trademarks should be goods or services related to these. If the trademark registration specifies that the scope of application includes scientific instruments, then the trademark can be used for related scientific instrument products or services.